Copyright and Fair Use (Stanford University Libraries)
This is a well organized site that provides the ability to search primary materials, current legislation and cases. Links to other sites are available as well as an overview of copyright law.

CETUS (Consortium for Educational Technology for University Systems)
This site contains the electronic version of Fair Use of Copyrighted Works, a pamphlet published by CETUS. It was put together by the Working Group on Ownership, Legal Rights of Use and Fair Use of the CSU-SUNY-CUNY Joint Committee. It also contains links to fair-use guidelines and other resources that are intended to promote a fuller understanding and appreciation of copyright laws.

United States Copyright Office
This sites serves the copyright community of creators and users, as well as the general public. Key publications, including informational circulars; application forms for copyright registration; and links to the copyright law and to the home pages of other copyright-related organizations can be found at this site.

Copyright Clearance Center
The Copyright Clearance Center, Inc. is the largest licenser of photocopy reproduction rights in the world. Check out their list of resources for links to copyright web sites.